Read only memory device

Details Read only memory device Read only memory device

2005-12-13

2005-12-13

Hoang, Huan (Department: 2827)

Static information storage and retrieval

Read only systems

C365S104000, C365S210130

Reexamination Certificate

active

06975528

ABSTRACT:
The present invention relates to an improved read only memory device. The read only memory device includes a read only memory cell array with a plurality of first read only memory cells and a plurality of second read only memory cells. A reference memory cell array includes a plurality of first reference memory cells and at least one second reference memory cell. A dummy memory cell array includes a plurality of first dummy memory cells and a plurality of second dummy memory cells. A reference word line selecting circuit selects the reference word line responsive to a row address.

REFERENCES:
patent: 5394371 (1995-02-01), Hotta
patent: 6347047 (2002-02-01), Kohno

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